Topband: Unknown Pulse Signal Wiping out 1900-1925 kHz

[thorvaldur S T E F A N S S O N]

12:27 UTC -  nothing heard in TF.   The source is definitely not TF.
73 Thor, TF4M



On Tue, Dec 9, 2014 at 12:15 PM, Will Angenent <k6nd at k6nd.com> wrote:

> 12:13 is 10 over 9 here on the NE Bev. And 000 on the NW Bev
>
> Will
> K6ND
>
>
> -----Original Message-----
> From: Topband [mailto:topband-bounces at contesting.com] On Behalf Of Doug
> Grant
> Sent: Tuesday, December 9, 2014 6:38 AM
> To: Rich C
> Cc: Ray Benny; topband at contesting.com
> Subject: Re: Topband: Unknown Pulse Signal Wiping out 1900-1925 kHz
>
> 1136z and it is 40 over 9 here in southern Maine.
>
> It is not far away from here.
>
>
> >>
> >> the sound clip on that page has audio that is higher-pitched than the
> >> one on 1915 but similar in structure.
> >>
> >> 73,
> >>
> >>
> >> Doug K1DG
> >>
> >>
> >> On Tue, Dec 9, 2014 at 3:44 AM, Ray Benny <rayn6vr at cableone.net> wrote:
> >>
> >>> Guys,
> >>>
> >>>
> >>> I am hearing something between 1910 and 1925. Its a rapid, raspy,
> >>> pulse  tone, but its coming from the SE in Central AZ (SA
> >>> direction). It is just above my noise level, currently S4, so not
> >>> strong. Do not hear it on my TX vertical. Don't know if this could
> >>> be the noise reported or some local garbage in my area.
> >>>
> >>> Using a HI-Z RX 4 SQ.
> >>>
> >>>
> >>> Ray,
> >>> N6VR
> >>>
> >>>
> >>> On Mon, Dec 8, 2014 at 7:13 PM, Doug Grant <dougk1dg at gmail.com> wrote:
> >>>
> >>>>
> >>>>> From: k1fz at myfairpoint.net
> >>>>>
> >>>>
> >>>>> Monday? 9;45 AM
> >>>>> Unable to hear the 1900-1925 Khz. interfering signal this morning.
> >>>>> Propagation change, or is the signal gone ?
> >>>>> Anyone still hear it?
> >>>>>
> >>>>
> >>>> I checked a few times during the day on Monday and did not hear it.
> >>>>
> >>>>
> >>>> At 0200z I checked again and it was there and very loud...40dB over
> >>>> s9. Definitely louder on my NE antenna, but only by 10 dB or so.
> >>>> Maybe  it is close enough that it is arriving at a high angle. But
> >>>> 30 seconds after I tuned in, it stopped!
> >>>>
> >>>> The signal characteristics are almost identical to CODAR
> >>>> sea-surface radar. There are three of those installations in Maine
> >>>> and VE1 that are easy to hear on 4.8 MHz. Maybe they are trying
> >>>> smoethign new there. Or maybe is it in TF or even shipboard
> >>>> somewhere  off Newfoundland...the CODAR system uses fairly small
> >>>> antennas and low power, so it is possible.
> >>>>
> >>>> I placed a phone call over the weekend to the Operations Manager
> >>>> for one of the projects using those sites and left a message asking
> >>>> if they had something running at 1.9 MHz, but no answer yet.
> >>>>
> >>>> 73,
> >>>>
> >>>>
> >>>> Doug K1DG
> >>>> Long Island, ME  FN43
> >>>> _________________
> >>>> Topband Reflector Archives - http://www.contesting.com/_topband
> >>>>
> >>>
> >>>
> >> _________________
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> >>
> >>
> >
> >
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